Heating and ventilating unit



w. suunnm. HEATING AND VENTILATING UNIT.

APPLICATION HLED SEPT. 21. BIB.

1,332,923. Patented Mar. 9, 1920.

If 2 SHEETS-SHEET I.

W. SHURTLEFF.

HEATING AND VENTILATING UNIT.

APPUCATION FILED SEPT- 27.1918.

Patented Mar. 9, 1920.

2 SHEETS-SHEET 2.

I n 4 n UNITED STATES PATENT OFFICE.

WILFBED SHUBTLEEF, 3] MOLINE, ILLINOIS, ASBIGNOR TO MOLINE HEAT, 0] MOLINE,

ILLINOIS, A CORPORATION OF ILLINOIS.

HEATING AND VENTILA'I'ING UNIT.

To all whom it may concern:

Be it known that I WILFRED SHUBTLEFT, a citizen of the United States, and a resident of Moline in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Heating and Ventilating Units, of which the following is a specification.

My invention relates to heating and ventilatmg units, particular] to that class in which a heat radiator an a blower are inclosed in a housing having connection with the outside air and having a dischar e opening into the room to be heated an ventilated, the incoming cool air being driven by the blower in contact with the radiator and then delivered to the room.

One difliculty heretofore has been to provide a radiator of suflicient height to give sulficient area for heating the cold outside air to the-temperature desired for the room to be heated, distance of travel of the air being the prime factor in obtainin the final temperature. The units are usua ly placed with their inlet openings in front of a window to receive the cold air when the window is raised, the top of the unit being a short distance above the window sill. Window sills, of course, differ in height and where the vertical distance is limited the radiators used in prior devices could not'give the required heating area. In some of these prior art devices the air passage space above and below the radiator has been encroaohed upon but this causes cramping and retardation of the air flow and prevents the device from operating efliciently.

,7 One important object of my invention is to provide an improved radiator which will make the heating and ventilating devices equally eflicient independently of their height. My improved radiator has the same general construction as other radiators except that it is divided by, a vertical wall formed by engaging fin projections extending from the radiator sections, this construction causing the air from the blower to flow downwardly through one half of the radiator and upwardly through the opposite half, the one s1deof the radiator tempering! the air'and the-other side warming'itto therequired' temperature before delivery into the room. The ait not only circulates around the radiator structure as 1n prior devices but Specification 01' Letters Patent.

Application filed September 27, 1918. Serial No. 256,967.

Patented Mar. 9, 1920.

flows through the radiator halves in intimate contact with the opposed sides of the radiator sections, the radiator surface being further increased by fins on the sections.

Another important feature of 'my invention resides in improved valve and dampermg means for permittin flow of cold air directly into the room, or or mixin cold and warm air to any degree desire and for controlling the volume of air to be delivered to the room at any desired temperature, either cold, hot or medium.

Another important feature of my invention resides in improved moistening mechanism automatically controlled by the amount f air passing t rough the radiator, the

amount of moisture delivered thereto.

A structure embodying the various features of my invention is shown .on the accompanyi'ng drawings, in which- Figure 1 is a vertical sectional view through a unit showing the unit applied to a window opening,

2 is a sectional viewon plane 22,

Fig. 3 is a side elevational view of the outlet portion of the unit, and

Fig. 4 is an enlarged sectional view on plane 4-4, Fig. 3, showing the damper controlling mechanism.

The rectangular housing 5 of sheet metal has an inlet duct 6 extending rearwardly at its upper end from the blower chamber 7 the outer end of the duct supporting a frame 8 which in practice rests on the window sill 9 to bring the duct into alinement with the open space 10 of the raised window 11. An abutment strip 12 is shown secured to the window against which the upper part of the.

zontally through the housing and supports the blower 19 whose outlet .end 20 extends downwardly through i the opening 121*;in

the partition. The shelf 18 is preferably *into contact before it is delivered to the room "through the outlet spent 17. This radiator structure is built up of a number of sections 23 in the usual manner. Each section comprises a hollow rectangular body out of the 24 from whose opposite sides extend the fins 25. Each section has at its upper end opposed inlet and outlet lugs 26 and 27 and at its lower end similar inlet and outlet lugs 28 and 29, nipples (not shown) engaging in the lugsv of ad'acent sections of the radiator structure a ording commun1- cation for flow of water or steam between the sections the sections being held securely to ther by means of bolts 30 extending tfizough cars 31, in the well known manner. When the sections are clamped together by the bolts the lugs of ad acent sections engage with each other (Fig. 2) and the vertical center fins 32 on the sides of the sections engage with each other to form walls which 006 rate with the abutting lu to divide t e radiator structure vertical y. As shown, the other fins 25 are shorter than the center fins and do not meet, but it is evident that they could be of the same len h as the center fins and en age with eac other so as to form indiviual vertical assageways.

Exten in across the top of each radiator section are t e flanges 33 and 34, the flanges on adjacent sections registeringdao form a continuous groove along the top of the radiator structure for felt padding 35. A sheet metal damper or deflect' plate 36 extends across the interior of t e housin 5 from one side to the other thereof an is hinged on a rod 37. The h' d end of the dam r extends along the fe t packing 35 whic forms a seal against direct air flow from the blower to the outlet when the damper is closed. This packing and the packm 22 of the shelf 18 also acts to absorb vi rati'ons and revent noise when the blower is running. e damper 36 extends into the outlet spout 17 to be adjusted therein-in 251g position between the front and Mr W of the spout. v

The radiator structure extends'close u to the four walls of the housing 5 so that w en the damper 86 is swung against the wall 15 all the air from the blower must travel downwardly through'the rear half 'of the radiator and upwardly through the front half of the radiator-structure and Rt 17, the air, during its passage thro the rear half being tem red :11 during flow through the front of mamas thei radiator structure being heated to the desired temperature. If the damper 36 is swung forwardly against the front'wall 16 then all the air from the blower will travel directly through the spout into the room. If the damper is placed at an intermediateosition in the spout, some of the air wil be blown directly into the room and the balance will circulate through the radiator structure to be warmed before delivery from the spout, and by ad'usting the damper any mixture of cold an tained. To lock the dam r in adjusted position the threaded on s of the stifl'enmg bar 38 may extend through slots 39 and 39' in the side walls of the housing to receive winged clamping nuts 40 and 40'.

In Figs. 3 and 4 a double damper arrangement is shown by means of which adjustment can be made for controlling the volume of air to be delivered to a room at any desired temperature or for controlling the temperature of the air without interfering with the voliime delivered. The additional damper 4], is hinged on the rod 42 1n front of the; rod 3:7 of the damper 36 and the ends of thestiflening rod 43 at the outer ed e of the additional damper extend throug the slots 39 and 39 in the sides of the spout. "Links 44and 44" are pivoted at their inner ends on the respective, ends of the stiffening rod 38 of the damper 36 inside of the thumb nuts. These links have the longitudinal slots 45 and 45', resgectively, through which the ends of the sti ening rod of the damper 41 extend, these ends being threaded for receivi the wing nuts 46 and 46', respectively. Between the links and the adjacent sides of the spout abutment collars 47 and 47', respectively, are secured to the ends of the stiifening rod 43 so that the links can be clamped against these collars by the wingnuts to lock the dam r 41 to the links in any osition. Was ers 48 and 48' are interposed tween the inner ends of the links andthe spout sides to ofl'est the thickness of the collars 47 anid to keep the links parallel with'the' spoilt si es.

With the double damper construction shown various adjustmentsfor volume, mixture and tem rature can be made. For example, in Fig. 3, the dam 41 is locked to the links 45 and '45, intermediate the link ends to space the dampers acert'ain dis tance apart, the dampers in this position warm air can be ob- W3 B lbw-111 loc ed tbgether dam swung to any posit let spout. Thefull in;

eutw 1 g she damperstructure W; W11",

wall of the spent so that-the air is restricted by the dam r structure with a correspondingly limited delivery of heated air therethrough. The dotted lines in Fig. 3 show the double damper structure swung downwardly to be intermediate the front and rear walls of the spout so that part of the air from the blower can flow 'directly through the spout into the room and the balance through the radiator structure, the volume of air delivered from the spout remaining the same, so long as the adjustment between the dampers remains the same. Thus the dampers can be relatively adjusted to give the desired volume of air and then the adjusted damper structure swung in the spout and locked in position depending upon the ratio of cold to warm air desired.

Provision is also made to supply moisture to the warm air in proper quantities. In the lower art of the front wall of the housing 5 is t e opening 49 through which a waterpan 50 can be inserted below the radiator structure, the door 51 being rovided to close the opening. A ball oat 52 may be provided for controlling a valve (not shown) through which Water is delivered to the pan so as to kee the water level in the pan constant. 11 inclined shaft 53 is journaled in brackets 54 and 55 supported on the pan and at its inner end has the windmill 56 secured thereto, this windmill being in osition to be in the path of the air flowing through the space between the an and the radiator structure on its way romonesideof the radiator to the other side. The shaft 'also supportsacentrifugal waterthrower in the form of a disk 57having vanes 58 thereon, this water thrower di ping into the water in the pan. Tie thrower is in such a position that when it is rotated during the passage of air through the windmill water particles will be thrown upwardly against the outflowing side of the radiator structure so that the air flowing through this side will pick up the water particles and vapor to be properly moistened before it is delivered into the room. An apron 59 is secured to the door 51 whose lower end engages with the to of the pan when the door is closed in or er to return to the pan any water thrown against the front wall of the housing or the door or any water dripping down from the radiator structure.

Efficient moistening of the air is accomplished automatically. When the air from the outside flows directly into the room no moistening is usually required. How.- ever, when the air flows first through the radiator where heating thereof reduces the relative humidity, then its lost moisture must be replenished and as the windmill is driven in accordance with the amount of air flowing through the radiator the pro r amount of moisture will be automatica ly delivered to the air under all conditions. The air also strikes the waterin the pan which catches dust and dirt so that the air is cleaned.

I thus roduce a very eflicient heating and venti ating unit which on account of my improved form of radiator has much greater capacity than devices of the prior art. By means of the improved damper arrangement nice adjustment can be made for the volume of air delivered and for any desired ratio of cold air and heated air. Moistening of the air is accomplished auto matically as required.

I do not, of course, desire to be limited to the exact construction, arrangement and operation shown and described as changes and modifications are no doubt possible which would still come within the scope of the invention. I claim as follows:

1. In a device of the class described, the combination of a housin having an air inlet and an air outlet, a lower within the housing, a radiator within the housin below said blower. a vertical wall divlding said radiator into two sides, means for causing the air from said blower to flow downwardly through one side of the radiator and upwardly through the other side thereof before it reaches said outlet.

2. In a device of theclass described, the combination of a housing having an air inlet and an air outlet, a radiator within the housing having vertical passageways therethrough, and a damper positioned between said inlet and outlet and extending to said radiator for deflecting the air downwardly through one part of the radiator and upwardly through another part thereof be fore it reaches the outlet.

' 3. In a device of the class described, the combination of a housin having an air inlet and an air outlet, a lower in the upper partl'of said housing, a radiator in the casing below the blower, said radiator having vertical passageways, an adjustable damper extending upwardly from said radiator. into said air outlet, said damper in one position causing all the air from the blowerv to fiow downwardly through one part of the radiator and upwardly through another part thereof and through the outlet, and in other positions permitting part of the air to flow directly from said blower through said outlet.

4. In a device of the class described, the

combination ,of a housing having an air inlet and an air outlet at its upper end, a blower chamber betweensaidinlet and outlet and a blower therein for directing air downwardly, a radiator within the housing a distance below said blower, said radiator having vertical passageways therethrough,

other positions causing all the air to flow directly from said blower throughsaid outlet or part of the air to flow from said i) 'ower through the outlet.

5. In a device of the class described, the combination of a hous' having an air inlet and an air outlet, a lower in the upper part of said housing, a radiator structure within said housing below the blower, said radiator structure comprising a plurality of vertical sections separated to form passageways, a vertical wall dividin said radiator structure into two parts, an a defleeting wall extending from the radiator structure above said dividing wall and between the blower outlet and said air outlet for caus' the air from the blower to flow downward y through the passa ways of one radiator structure and upwa y through the passageways of the other radiator structure before it reaches the air outlet. 4

6. In a device of the class described, the combination of a housi having an air inlet and an air outlet, a b ower in the upper art of-said housingkn radiator structure within said housing low the blower, said radiator structure comprising a plurality of vertical sections separated to form passageways, a vertical wall dividing said radiator structure into two parts, and a damper hinged along the top of the radiator structure at the dividing wall thereof and extending into said air outlet, said damper in one position causing all the air from said blower to travel downwardly through one part of the radiator structure and n wardl through the other part thereof be ore de ivory through the air outlet, and said dam in other positions rmitt' part or a of the air from the lower to ow directly through said air outlet.

7. In a device of the class described, the combination of a housing having an air inlet and an air outlet at t e upper end the of, a blower in the upper end of said housing for receiving the moo air and d1- recting it downwardly, a later wlthm the housing below said blower outlet said radiator-comprising a plurality of radiator sections, fins extending from adjacent sections into contact with each other to form a vertical wall for the radiator vertically into two parts, and a damper hinged along the top 0 said radiator in line with said wall and extending into said air let, said dam r in one position causing a the air from life blower to flow downwardly through one part or the radiator and upwardly through the other part of the radiator before it reaches the outlet, and said dam r in other positions part or of the air from the blower to flow directlglfhrough the outlet.

8. a device of the class described, the combination of a housing having an air inlet and an air outlet near its upper end, a blower chamber at the upper end of said housing and a blower therein, a radiator within the housing between the blower outlet and the air outlet, a damper adjustable to cause all the air from the blower to be heated blyr said radiator before delivery thereof is ough said outlet and adjustable to cause Earl; or all of the air from the blower to ow directly through said air out- 9. In a device of the class described, the combination of a housing) having an air inlet and an air outlet, a lower for blowing air from the inlet downwardly into the housing, a heat radiator within the housing intermediate the lower end thereof and the blower outlet for heating the air before it reaches the air outlet, a water pan within the housing below said radiator, and means propelled y the air flow within said lions mg for throwing water from the pan against said radiator and into the path of the air flowing therethrough.

10. In a device of the class described, the combination of a housi having an air inlet and anair outlet, a lower for blowing air from the inlet downwardly into the housing, a heat radiator within the housing intermediate the lower end thereof and the blower outlet for heating the air before it reaches the air outlet, 9, water pan within the housing below said radiator, a windmill located in the path of the air flow through said housing to be rotated thereby, and means'driven b said windmill to pick up water from sai an and throw it against said radiator to vaporized for moistening the air before it is delivered from said air outlet.

11. In a device of the class described, the combination of a hous' having an air inlet and an air outlet, a lower for blowing air downwardly into the housing, a radiator within the housing having vertical passageways therethrough, means for causing the air from the blower to flow downwardly through one part of. the radiator and upwardly through another part thereof before it reaches the outlet, a water pan within the housing below said radiator, a windmill below the radiator in the path of the airflowing from one at to the other thereof, and a disk rot by mid windmill, said disk being below the outflowing part of the radiator and dipping into the water of the pan to pick up and discharge water particles against the radiator where the water is vaporized and the air moistened before delivcry from said air outlet.

12. In a device of the class described, the combination of a housing having an air inlet and an air outlet, a radiator Within the housing below said inlet and outlet, a damper structure extendin upwardly from the radiator into said out et, said damper structure bein adjustable to control the volume of flow t rough said outlet and being shiftable in said outlet to control the ratio of direct air flow and heated air flow through said outlet.

13. In a device of the class described, the combination of a housing having an air inlet and an air outlet, a radiator Within said housing in the path of air flowing from said inlet to the outlet, two dampers extending from the radiator into said outlet, said dampers being relatively adjustable to control the area of said outlet and thereby the volume of flow therethrough, and said dampers being shiftable together in said outlet for controlling the ratio of direct air flow from the inlet to the outlet and heated air flow.

In witness whereof, I hereunto subscribe my name this 24th day of September, A. D.,

WILFRED SHURTLEFF. 

